Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/96065
Title: | Modeling proton exchange membrane fuel cells with fiber-based microporous layers | Authors: | Lin, PZ Sun, J Shao, MH Wu, MC Zhao, TS |
Issue Date: | 1-Dec-2022 | Source: | International journal of heat and mass transfer, 1 Dec. 2022, v. 198, 123398 | Abstract: | Microporous layers (MPLs) play a crucial role in improving water management in proton exchange membrane fuel cells (PEMFCs). Highly tunable electrospun carbon fibers offer a promising candidate for MPLs to facilitate two-phase water and gas transport in PEMFCs. In this work, we present a two-phase PEMFC model to investigate the mass transport characteristics with MPLs made of nano-/micro-fibers. Simulations were validated by the reported experimental results. It is revealed that the fiber-based MPLs (fMPLs) reduce the liquid water saturation at the cathode side due to the higher permeability, thus significantly reducing the oxygen transport resistance and resulting in superior cell performance than conventional MPLs (cMPLs) do. Moreover, PEMFCs with fMPLs outperform those with cMPLs under a wide range of operating temperatures from 40 to 80 °C. In addition, our parametric study results suggest that fMPLs with a high porosity (> 0.5), a large fiber diameter (> 2 µm), and a large contact angle (> 135°) can effectively boost water drainage and gas transport, thereby considerably enhancing the PEMFC performance. This work provides insights into the two-phase transport behavior in PEMFCs with fMPLs, paving the way for design and development of novel MPLs for high-performance PEMFCs. | Keywords: | Proton exchange membrane fuel cell Microporous layer Two-phase model Electrospun carbon fibers Water management |
Publisher: | Elsevier Ltd | Journal: | International journal of heat and mass transfer | ISSN: | 0017-9310 | EISSN: | 1879-2189 | DOI: | 10.1016/j.ijheatmasstransfer.2022.123398 | Rights: | © 2022 Elsevier Ltd. All rights reserved. The following publication Lin, P. Z., Sun, J., Shao, M. H., Wu, M. C., & Zhao, T. S. (2022). Modeling proton exchange membrane fuel cells with fiber-based microporous layers. International Journal of Heat and Mass Transfer, 198, 123398 is available at https://dx.doi.org/10.1016/j.ijheatmasstransfer.2022.123398. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Modeling_PEMFC_with_fMPL.pdf | Preprint version | 2.94 MB | Adobe PDF | View/Open |
Page views
58
Last Week
0
0
Last month
Citations as of May 19, 2024
Downloads
76
Citations as of May 19, 2024
SCOPUSTM
Citations
4
Citations as of May 17, 2024
WEB OF SCIENCETM
Citations
4
Citations as of May 16, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.